Color

#005a8f

#005a8f
hex#005a8f
rgbrgb(0, 90, 143)
hslhsl(202, 100%, 28%)
oklchoklch(0.451 0.112 244.5)
Closest name: Beyond the Sea (#005784)Relative luminance 0.093

Colors that go with #005a8f

Charcoal, Royal Blue and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8f3400

#008f7c · #00138f

#8f005a · #5a8f00

Split-complementary

Open in tool →

#8f0013 · #8f7c00

#7c008f · #8f3400 · #138f00

Contrast

#005a8f as textRatioAAAA largeAAAFix
Aaon white
7.34:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #007bc2 as the text (4.61:1)
  • AAA: use #009bf5 as the text (7.01:1)
  • AA: or shift the background to #cccccc (4.57:1)
  • AAA: or shift the background to #fafafa (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #005a8f as the background.

Brands using this color

Fonts for this mood

#005a8f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #005a8f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #005a8f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/005a8f-9cb1c4-df4e5f-1f222d-e9f1f0?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md